He would lose to Cold, if Goku's max was 150 million, and Frieza's max is 120 million we can also assume that Cold is at least as strong as Frieza (actually stated stronger than Frieza), Goku had trouble with one Frieza though he had the upper hand so two Friezas would overwhelm him

Goku never really struggled against Frieza in the manga when he was 100% full power. So Goku would have no problem beating Frieza here. The problem is King Cold who is state to be more powerful than Frieza, we don't how much more powerful he is since he doesn't do anything impressive.I will give Goku the slight edge due to feats for now.

@eddz99: no those are legitimate power levels (the 150 mill, and 120 mill), and I don't see this Goku beating 2 Friezas especially not with ease, also Cold is stated to be stronger than Frieza, by how much is unknown but he seemed pretty confident against trunks who killed a stronger version of his son (metal Frieza) in less than a few seconds

@eddz99: Thing is Cold may be as strong as this Goku, we simply don't know, he was stated to be stronger than both Frieza and Cooler, and on a side note Trunks could have easily sliced up this Goku as well